TWI819514B - High pitch enhanced passive radiator and passive radiator speaker having the same - Google Patents

High pitch enhanced passive radiator and passive radiator speaker having the same Download PDF

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TWI819514B
TWI819514B TW111108649A TW111108649A TWI819514B TW I819514 B TWI819514 B TW I819514B TW 111108649 A TW111108649 A TW 111108649A TW 111108649 A TW111108649 A TW 111108649A TW I819514 B TWI819514 B TW I819514B
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Taiwan
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passive radiator
inner ring
piezoelectric
weight plate
speaker
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TW111108649A
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Chinese (zh)
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TW202337230A (en
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王小勤
盤立平
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緯創資通股份有限公司
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Priority to TW111108649A priority Critical patent/TWI819514B/en
Priority to CN202210381977.7A priority patent/CN116782080A/en
Priority to US17/852,473 priority patent/US20230292039A1/en
Publication of TW202337230A publication Critical patent/TW202337230A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
    • H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

A high pitch enhanced passive radiator is adapted to a passive radiator speaker. The high pitch enhanced passive radiator comprises a shell, a woofer and the passive radiator speaker. The shell has a first through hole and a second through hole. The woofer is connected to the first through hole. The passive radiator speaker is connected to the second through hole and comprises a suspension edge, a piezoelectric speaker and a counterweight plate. The piezoelectric speaker is connected to the suspension edge. The projected area of the counterweight plate and the projected area of the piezoelectric speaker at least partially overlap.

Description

高音增強型被動幅射器及被動幅射器音箱Treble enhanced passive radiator and passive radiator speakers

一種被動幅射器，特別是高音增強型被動幅射器以及具有高音增強型被動幅射器的音箱。A passive radiator, in particular a treble-enhanced passive radiator and a speaker with a treble-enhanced passive radiator.

一般的傳統音箱通常具有一低音喇叭及一被動板，由於被動板僅針對低音進行增強，因此傳統音箱必須額外設置一高音喇叭來增加高頻音質，導致傳統音響的體積增加及產生了額外的成本。A typical traditional speaker usually has a woofer and a passive panel. Since the passive panel only enhances the bass, the traditional speaker must be equipped with an additional tweeter to increase the high-frequency sound quality, resulting in an increase in the size of the traditional speaker and additional costs. .

鑑於上述，依據一些實施例，一種高音增強型被動幅射器包括懸邊、壓電喇叭及配重板。壓電喇叭連接於懸邊。配重板的投影面積與壓電喇叭的投影面積至少部分重疊。In view of the above, according to some embodiments, a treble-enhanced passive radiator includes a suspension, a piezoelectric horn and a weight plate. The piezoelectric horn is connected to the suspension. The projected area of the weight plate overlaps at least partially with the projected area of the piezoelectric horn.

在一些實施例中，懸邊包含內環帶，壓電喇叭連接內環帶，配重板連接於壓電喇叭相對於內環帶的另一面。In some embodiments, the suspension includes an inner ring, the piezoelectric horn is connected to the inner ring, and the weight plate is connected to the other side of the piezoelectric horn relative to the inner ring.

在一些實施例中，更包括墊圈，懸邊包含內環帶，壓電喇叭連接內環帶，墊圈連接於壓電喇叭相對於內環帶的另一面，配重板連接於墊圈相對於壓電喇叭的另一面。In some embodiments, it further includes a washer, the hanging edge includes an inner annular band, the piezoelectric horn is connected to the inner annular band, the washer is connected to the other side of the piezoelectric horn relative to the inner annular band, and the weight plate is connected to the washer relative to the piezoelectric horn. The other side of the speaker.

在一些實施例中，懸邊包含內環帶，配重板連接內環帶，壓電喇叭連接於配重板相對於內環帶的一面。In some embodiments, the suspension edge includes an inner annulus, the weight plate is connected to the inner annulus, and the piezoelectric horn is connected to a side of the weight plate opposite to the inner annulus.

在一些實施例中，懸邊包含內環帶，壓電喇叭連接內環帶，配重板連接於內環帶相對於壓電喇叭的另一面。In some embodiments, the suspension edge includes an inner annulus, the piezoelectric horn is connected to the inner annulus, and the weight plate is connected to the other side of the inner annulus relative to the piezoelectric horn.

依據一實施例提供一種被動幅射器音箱包括殼體。殼體具有低音喇叭及高音增強型被動幅射器。高音增強型被動幅射器鄰近於低音喇叭。高音增強型被動幅射器包括懸邊、壓電喇叭及配重板。壓電喇叭連接於懸邊。配重板的投影面積與壓電喇叭的投影面積至少部分重疊。According to an embodiment, a passive radiator sound box includes a shell. The shell has a woofer and a treble-enhanced passive radiator. The treble-enhanced passive radiator is located adjacent to the woofer. Treble-enhanced passive radiators include suspension, piezoelectric horns and weight plates. The piezoelectric horn is connected to the suspension. The projected area of the weight plate overlaps at least partially with the projected area of the piezoelectric horn.

綜上所述，一種高音增強型被動幅射器適於一被動幅射器音箱。依據一實施例，高音增強型被動幅射器透過將壓電喇叭設置於配重板上，使得配重板除了能夠增強低頻音質，還具有擴充高頻音質的效果。另外，依據一實施例，被動幅射器音箱透過將高音增強型被動幅射器應用於音箱，取代傳統的高音喇叭以降低成本與重量。To sum up, a treble-enhanced passive radiator is suitable for a passive radiator speaker. According to one embodiment, the treble-enhanced passive radiator disposes the piezoelectric horn on the weight plate, so that the weight plate can not only enhance the low-frequency sound quality, but also have the effect of expanding the high-frequency sound quality. In addition, according to an embodiment, the passive radiator speaker uses a treble-enhanced passive radiator in the speaker to replace the traditional tweeter to reduce cost and weight.

請參閱圖1至圖3。圖1繪示為根據一第一實施例被動幅射器音箱之立體圖。圖2繪示為根據一第一實施例被動幅射器音箱之分解圖。圖3繪示為根據一第一實施例高音增強型被動幅射器之分解圖。如圖3所示，一種高音增強型被動幅射器100包括懸邊110、壓電喇叭130及配重板150。下文的高音增強型被動幅射器100以被動幅射器100稱之，在一實施例中，被動幅射器100係指為不具音圈的喇叭，與具有音圈的主動喇叭設置於同一密閉音箱內。當主動喇叭發聲振動時，由於被動幅射器100與音箱箱體的彈性係數不同，諧振點得到較低的頻率，使得低頻增強，且透過被動幅射器100的壓電喇叭130同時增強高頻，使得音箱的音質更為出色。在此，主動喇叭與壓電喇叭130的振動原理不同，主動喇叭的動圈驅動單元透過電流線圈產生的磁場與磁隙中的磁場相互作用產生的力以驅動振膜發聲。壓電喇叭130則是先將其分離為兩極並通電後，伸縮驅動空氣發聲。See Figure 1 to Figure 3. FIG. 1 is a perspective view of a passive radiator speaker according to a first embodiment. FIG. 2 is an exploded view of a passive radiator speaker according to a first embodiment. FIG. 3 is an exploded view of a high-pitched enhanced passive radiator according to a first embodiment. As shown in FIG. 3 , a treble-enhanced passive radiator 100 includes a suspension 110 , a piezoelectric speaker 130 and a weight plate 150 . The treble-enhanced passive radiator 100 below is referred to as the passive radiator 100. In one embodiment, the passive radiator 100 refers to a speaker without a voice coil, and is arranged in the same seal as an active speaker with a voice coil. inside the speaker. When the active speaker makes sound and vibrates, due to the different elastic coefficients of the passive radiator 100 and the speaker cabinet, the resonance point obtains a lower frequency, so that the low frequency is enhanced, and the high frequency is simultaneously enhanced through the piezoelectric speaker 130 of the passive radiator 100 , making the sound quality of the speaker even better. Here, the vibration principles of the active speaker and the piezoelectric speaker 130 are different. The dynamic driver unit of the active speaker drives the diaphragm to produce sound through the force generated by the interaction between the magnetic field generated by the current coil and the magnetic field in the magnetic gap. The piezoelectric speaker 130 is first separated into two poles and energized, and then expands and contracts to drive the air to produce sound.

壓電喇叭130連接於懸邊110。在一實施例中，懸邊110具有外環帶114、內環帶111及隆起部115，隆起部115位於外環帶114及內環帶111之間。在一實施例中，壓電喇叭130包括一支撐片材及一壓電材料，壓電材料貼附於支撐片材上，壓電材料為一種具有壓電性質的材料的混合物，例如鈦酸鋇、鋯鈦酸鉛、改性鋯鈦酸鉛、偏鈮酸鉛、鈮酸鉛鋇鋰、改性鈦酸鉛等。支撐片材的材料例如為金屬或塑膠之材質。壓電喇叭130透過支撐片材與壓電材料的相互配合達到等化的效果。The piezoelectric horn 130 is connected to the suspension 110 . In one embodiment, the hanging edge 110 has an outer annular band 114 , an inner annular band 111 and a raised portion 115 . The raised portion 115 is located between the outer annular band 114 and the inner annular band 111 . In one embodiment, the piezoelectric horn 130 includes a support sheet and a piezoelectric material. The piezoelectric material is attached to the support sheet. The piezoelectric material is a mixture of materials with piezoelectric properties, such as barium titanate. , lead zirconate titanate, modified lead zirconate titanate, lead metaniobate, lead barium lithium niobate, modified lead titanate, etc. The material of the supporting sheet is, for example, metal or plastic. The piezoelectric horn 130 achieves an equalizing effect through the cooperation of the supporting sheet and the piezoelectric material.

配重板150的投影面積與壓電喇叭130的投影面積至少部分重疊。在一實施例中，如圖3所示，懸邊110、壓電喇叭130及配重板150為同軸設置，且壓電喇叭130的投影面積與配重板150的投影面積在垂直於軸方向的平面上至少部分重疊。The projected area of the weight plate 150 and the projected area of the piezoelectric horn 130 at least partially overlap. In one embodiment, as shown in FIG. 3 , the suspension 110 , the piezoelectric horn 130 and the weight plate 150 are coaxially arranged, and the projected area of the piezoelectric horn 130 and the projected area of the weight plate 150 are in the direction perpendicular to the axis. at least partially overlap on the plane.

請參閱圖10。圖10繪示為根據一第一實施例被動幅射器音箱之效果示意圖。被動幅射器100透過將壓電喇叭130設置於配重板150上，使得配重板150除了能夠增強低頻音質，還具有擴充高頻音質的效果。如圖10所示，水平軸表示頻率，垂直軸表示音量，實線表示低音喇叭，虛線表示被動幅射器，三點鏈線表示壓電喇叭。具體來說，由於低音喇叭所發出之聲音，在高頻時會損失(如圖10中實線在高頻區域的音量下降)，僅能在低和中音頻維持音質，無法表現出高頻的音質。因此，透過壓電喇叭130延伸了高頻音質的效果，提升了音質的表現，此外，透過配重板150，使得被動幅射器100亦能夠增強低頻的音質。See Figure 10. FIG. 10 is a schematic diagram showing the effect of a passive radiator speaker according to a first embodiment. The passive radiator 100 disposes the piezoelectric speaker 130 on the weight plate 150, so that the weight plate 150 can not only enhance the low-frequency sound quality, but also have the effect of expanding the high-frequency sound quality. As shown in Figure 10, the horizontal axis represents frequency, the vertical axis represents volume, the solid line represents the woofer, the dotted line represents the passive radiator, and the three-dot chain line represents the piezoelectric speaker. Specifically, because the sound emitted by the woofer is lost at high frequencies (the volume of the solid line in the high-frequency area decreases in Figure 10), the sound quality can only be maintained in low and mid-range audio, and it cannot express high-frequency sounds. sound quality. Therefore, the piezoelectric speaker 130 extends the effect of high-frequency sound quality and improves the sound quality performance. In addition, through the weight plate 150 , the passive radiator 100 can also enhance the low-frequency sound quality.

在一實施例中，懸邊110之形狀係為圓形、橢圓形或矩形狀，且壓電喇叭130及配重板150之形狀對應懸邊110。如圖3所示，懸邊110之形狀例如為圓形，而壓電喇叭130及配重板150亦對應為圓形但不限於此，亦可以根據產品需求改變形狀。In one embodiment, the shape of the suspension 110 is circular, elliptical or rectangular, and the shapes of the piezoelectric horn 130 and the weight plate 150 correspond to the shapes of the suspension 110 . As shown in FIG. 3 , the shape of the suspension edge 110 is, for example, a circle, and the piezoelectric horn 130 and the weight plate 150 are also correspondingly circular, but are not limited to this, and the shape can also be changed according to product requirements.

請參閱圖4A至圖7。圖4A繪示為根據一第一實施例被動幅射器之剖視圖。圖4B繪示為根據一第一實施例被動幅射器之連接示意圖(一)。圖4C繪示為根據一第一實施例被動幅射器之連接示意圖(二)。圖5繪示為根據一第二實施例被動幅射器之剖視圖。圖6繪示為根據一第三實施例被動幅射器之剖視圖。圖7繪示為根據一第四實施例被動幅射器之剖視圖。懸邊110、壓電喇叭130及配重板150之間的連接具有多種實施態樣。See Figures 4A through 7. FIG. 4A is a cross-sectional view of a passive radiator according to a first embodiment. FIG. 4B is a schematic diagram (1) of connection of a passive radiator according to a first embodiment. FIG. 4C is a schematic diagram (2) of connection of a passive radiator according to a first embodiment. FIG. 5 is a cross-sectional view of a passive radiator according to a second embodiment. FIG. 6 is a cross-sectional view of a passive radiator according to a third embodiment. FIG. 7 is a cross-sectional view of a passive radiator according to a fourth embodiment. The connection between the suspension edge 110, the piezoelectric horn 130 and the weight plate 150 has various implementation forms.

如圖4A所示，在一實施例中，懸邊110包含內環帶111，壓電喇叭130連接內環帶111，配重板150連接於壓電喇叭130相對於內環帶111的另一面。具體來說，內環帶111具有相對之第一帶表面112及第二帶表面113，配重板150具有相對之第一板表面151及第二板表面152，壓電喇叭130具有相對之第一表面131及第二表面132。如圖4所示，壓電喇叭130的第一表面131連接於內環帶111的第二帶表面113，配重板150的第一板表面151連接於壓電喇叭130的第二表面132。如此，藉由直接連接的方式，將配重板150與壓電喇叭130連接。如圖4B及圖4C所示，在一實施例中，配重板150與壓電喇叭130是以黏貼的方式連接，具體來說，透過點(如圖4B)或線(如圖4C)的方式，使配重板150與壓電喇叭130不完全地貼附，致使配重板150與壓電喇叭130能夠相互振動。As shown in FIG. 4A , in one embodiment, the suspension 110 includes an inner ring 111 , the piezoelectric horn 130 is connected to the inner ring 111 , and the weight plate 150 is connected to the other side of the piezoelectric horn 130 relative to the inner ring 111 . . Specifically, the inner annular belt 111 has a first belt surface 112 and a second belt surface 113 opposite, the weight plate 150 has a first plate surface 151 and a second plate surface 152 opposite, and the piezoelectric horn 130 has a third belt surface opposite. A surface 131 and a second surface 132. As shown in FIG. 4 , the first surface 131 of the piezoelectric horn 130 is connected to the second belt surface 113 of the inner ring 111 , and the first plate surface 151 of the weight plate 150 is connected to the second surface 132 of the piezoelectric horn 130 . In this way, the weight plate 150 and the piezoelectric speaker 130 are connected through direct connection. As shown in FIG. 4B and FIG. 4C , in one embodiment, the weight plate 150 and the piezoelectric speaker 130 are connected in an adhesive manner. Specifically, through points (as shown in FIG. 4B) or lines (as shown in FIG. 4C). In this way, the weight plate 150 and the piezoelectric speaker 130 are not completely attached, so that the weight plate 150 and the piezoelectric speaker 130 can vibrate with each other.

如圖5所示，在一實施例中，被動幅射器100更包括墊圈170，壓電喇叭130連接內環帶111，墊圈170連接於壓電喇叭130相對於內環帶111的另一面，配重板150連接於墊圈170相對於壓電喇叭130的另一面。具體來說，壓電喇叭130的第一表面131連接於內環帶111的第二帶表面113，墊圈170連接於壓電喇叭130的第二表面132，配重板150的第一板表面151連接於墊圈170。在一實施例中，墊圈170例如為中空之環狀薄板。如此，藉由墊圈170將配重板150及壓電喇叭130間接連接，使得配重板150及壓電喇叭130間具有間隙，致使配重板150與壓電喇叭130能夠相互振動。As shown in FIG. 5 , in one embodiment, the passive radiator 100 further includes a washer 170 , the piezoelectric horn 130 is connected to the inner annular band 111 , and the washer 170 is connected to the other side of the piezoelectric horn 130 relative to the inner annular band 111 . The weight plate 150 is connected to the other side of the washer 170 opposite to the piezoelectric horn 130 . Specifically, the first surface 131 of the piezoelectric horn 130 is connected to the second belt surface 113 of the inner ring 111 , the washer 170 is connected to the second surface 132 of the piezoelectric horn 130 , and the first plate surface 151 of the weight plate 150 Connected to washer 170. In one embodiment, the gasket 170 is, for example, a hollow annular thin plate. In this way, the weight plate 150 and the piezoelectric speaker 130 are indirectly connected through the washer 170, so that there is a gap between the weight plate 150 and the piezoelectric speaker 130, so that the weight plate 150 and the piezoelectric speaker 130 can vibrate with each other.

如圖6所示，在一實施例中，配重板150連接內環帶111，壓電喇叭130連接於配重板150相對於內環帶111的一面。具體來說，配重板150的第一板表面151之周緣連接於內環帶111的第二帶表面113，壓電喇叭130的第二表面132連接於配重板150的第一板表面151。如此，藉由直接連接的方式，將配重板150與壓電喇叭130連接。As shown in FIG. 6 , in one embodiment, the weight plate 150 is connected to the inner annular belt 111 , and the piezoelectric horn 130 is connected to a side of the weight plate 150 opposite to the inner annular belt 111 . Specifically, the periphery of the first plate surface 151 of the weight plate 150 is connected to the second belt surface 113 of the inner annular belt 111 , and the second surface 132 of the piezoelectric horn 130 is connected to the first plate surface 151 of the weight plate 150 . . In this way, the weight plate 150 and the piezoelectric speaker 130 are connected through direct connection.

如圖7所示，在一實施例中，壓電喇叭130連接內環帶111，配重板150連接於內環帶111相對於壓電喇叭130的另一面。具體來說，壓電喇叭130的第二表面132連接於內環帶111的第一帶表面112，配重板150的第一板表面151連接於內環帶111的第二帶表面113。如此，藉由內環帶111將配重板150及壓電喇叭130間接連接，使得配重板150及壓電喇叭130間具有間隙，致使壓電喇叭130能夠維持相當的振動自由度。As shown in FIG. 7 , in one embodiment, the piezoelectric horn 130 is connected to the inner ring belt 111 , and the weight plate 150 is connected to the other side of the inner ring belt 111 relative to the piezoelectric horn 130 . Specifically, the second surface 132 of the piezoelectric horn 130 is connected to the first belt surface 112 of the inner ring 111 , and the first plate surface 151 of the weight plate 150 is connected to the second belt surface 113 of the inner ring 111 . In this way, the weight plate 150 and the piezoelectric speaker 130 are indirectly connected through the inner annular belt 111, so that there is a gap between the weight plate 150 and the piezoelectric speaker 130, so that the piezoelectric speaker 130 can maintain a considerable degree of freedom in vibration.

請參閱圖8及圖9。圖8繪示為根據一第三實施例被動幅射器之底視圖。圖9繪示為根據一第四實施例被動幅射器之底視圖。如圖8及圖9所示，配重板150之尺寸大於壓電喇叭130之尺寸，致使配重板150覆蓋了壓電喇叭130，因此，在一實施例中，配重板150開設有一槽153(如圖8及9圖所示)或一穿孔。具體來說，因為配重板150覆蓋了壓電喇叭130，欲接線至壓電喇叭130時，可以將電線穿過槽153或穿孔以接至壓電喇叭130。Please refer to Figure 8 and Figure 9. Figure 8 shows a bottom view of a passive radiator according to a third embodiment. Figure 9 shows a bottom view of a passive radiator according to a fourth embodiment. As shown in FIGS. 8 and 9 , the size of the weight plate 150 is larger than the size of the piezoelectric speaker 130 , causing the weight plate 150 to cover the piezoelectric speaker 130 . Therefore, in one embodiment, the weight plate 150 is provided with a slot. 153 (as shown in Figures 8 and 9) or a perforation. Specifically, because the weight plate 150 covers the piezoelectric speaker 130, when you want to connect the wires to the piezoelectric speaker 130, you can pass the wires through the slot 153 or through the hole to connect to the piezoelectric speaker 130.

再次參閱圖1及圖2，被動幅射器100之相關結構不再贅述。在一實施例中，被動幅射器100可以應用於音箱。一種被動幅射器音箱200，包括殼體210、低音喇叭230及高音增強型被動幅射器100。殼體210具有低音喇叭230及被動幅射器100。被動幅射器100鄰近於低音喇叭230。透過被動幅射器100配合低音喇叭230，當被動幅射器音箱200發聲時，能經由被動幅射器100的配重板150增強低音喇叭230的低頻，亦能同時經由壓電喇叭130增強高頻，以得到更出色的音色。在一實施例中，殼體210具有第一槽211及第二槽212，低音喇叭230位於第一槽211，被動幅射器100位於第二槽212。具體來說，殼體210包括蓋板215，第一槽211及第二槽212開設於蓋板215上，低音喇叭230黏貼於第一槽211，被動幅射器100黏貼於第二槽212，接著將電線焊接至低音喇叭230的電路板及被動幅射器100上，再將蓋板215黏貼於殼體210完成組裝。Referring again to FIG. 1 and FIG. 2 , the relevant structure of the passive radiator 100 will not be described again. In one embodiment, the passive radiator 100 can be applied to a speaker. A passive radiator sound box 200 includes a shell 210, a woofer 230 and a treble enhanced passive radiator 100. The housing 210 has a woofer 230 and a passive radiator 100 . Passive radiator 100 is adjacent to woofer 230 . Through the passive radiator 100 and the woofer 230, when the passive radiator speaker 200 emits sound, the low frequency of the woofer 230 can be enhanced through the weight plate 150 of the passive radiator 100, and the high frequency can also be enhanced through the piezoelectric speaker 130. frequency for better sound. In one embodiment, the housing 210 has a first slot 211 and a second slot 212, the woofer 230 is located in the first slot 211, and the passive radiator 100 is located in the second slot 212. Specifically, the housing 210 includes a cover 215, a first slot 211 and a second slot 212 are opened on the cover 215, the woofer 230 is adhered to the first slot 211, and the passive radiator 100 is adhered to the second slot 212. Then, the wires are welded to the circuit board of the woofer 230 and the passive radiator 100, and then the cover 215 is pasted on the housing 210 to complete the assembly.

綜上所述，提供一種高音增強型被動幅射器100及被動幅射器音箱200。高音增強型被動幅射器100透過將壓電喇叭130設置於配重板150上，使得配重板150除了能夠增強低頻音質，還具有擴充高頻音質的效果。另外，依據一實施例，被動幅射器音箱200透過將高音增強型被動幅射器100應用於音箱，藉由配重板150增強低音喇叭230的低頻，同時藉由壓電喇叭130增強高頻。如此，將傳統音箱的高音喇叭及配重板整合以降低了成本與重量。In summary, a treble-enhanced passive radiator 100 and a passive radiator speaker 200 are provided. The treble-enhanced passive radiator 100 disposes the piezoelectric speaker 130 on the weight plate 150, so that the weight plate 150 can not only enhance the low-frequency sound quality, but also have the effect of expanding the high-frequency sound quality. In addition, according to an embodiment, the passive radiator speaker 200 applies the treble-enhanced passive radiator 100 to the speaker, enhances the low frequency of the woofer 230 through the weight plate 150, and enhances the high frequency through the piezoelectric speaker 130. . In this way, the tweeter and weight plate of the traditional speaker are integrated to reduce cost and weight.

100:高音增強型被動幅射器 110:懸邊 111:內環帶 112:第一帶表面 113:第二帶表面 114:外環帶 115:隆起部 130:壓電喇叭 131:第一表面 132:第二表面 150:配重板 151:第一板表面 152:第二板表面 153:槽 170:墊圈 200:被動幅射器音箱 210:殼體 211:第一槽 212:第二槽 215:蓋板 230:低音喇叭 100: Treble enhanced passive radiator 110: hanging edge 111: Inner ring belt 112: First zone surface 113:Second zone surface 114:Outer ring belt 115: bulge 130: Piezoelectric horn 131: First surface 132: Second surface 150: Weight plate 151: First plate surface 152: Second plate surface 153:Slot 170: Washer 200: Passive radiator speakers 210: Shell 211:First slot 212:Second slot 215:Cover 230:woofer

[圖1] 繪示為根據一第一實施例被動幅射器音箱之立體圖。 [圖2] 繪示為根據一第一實施例被動幅射器音箱之分解圖。 [圖3] 繪示為根據一第一實施例高音增強型被動幅射器之分解圖。 [圖4A] 繪示為根據一第一實施例被動幅射器之剖視圖。 [圖4B] 繪示為根據一第一實施例被動幅射器之連接示意圖(一)。 [圖4C] 繪示為根據一第一實施例被動幅射器之連接示意圖(二)。 [圖5] 繪示為根據一第二實施例被動幅射器之剖視圖。 [圖6] 繪示為根據一第三實施例被動幅射器之剖視圖。 [圖7] 繪示為根據一第四實施例被動幅射器之剖視圖。 [圖8] 繪示為根據一第三實施例被動幅射器之底視圖。 [圖9] 繪示為根據一第四實施例被動幅射器之底視圖。 [圖10]繪示為根據一第一實施例被動幅射器音箱之效果示意圖。 [Fig. 1] is a perspective view of a passive radiator speaker according to a first embodiment. [Fig. 2] shows an exploded view of a passive radiator speaker according to a first embodiment. [Fig. 3] is an exploded view of a treble-enhanced passive radiator according to a first embodiment. [Fig. 4A] is a cross-sectional view of a passive radiator according to a first embodiment. [Fig. 4B] Shown is a schematic diagram (1) of the connection of the passive radiator according to a first embodiment. [Fig. 4C] is a schematic diagram (2) of connection of a passive radiator according to a first embodiment. [Fig. 5] is a cross-sectional view of a passive radiator according to a second embodiment. [Fig. 6] is a cross-sectional view of a passive radiator according to a third embodiment. [Fig. 7] is a cross-sectional view of a passive radiator according to a fourth embodiment. [Fig. 8] shows a bottom view of a passive radiator according to a third embodiment. [Fig. 9] shows a bottom view of a passive radiator according to a fourth embodiment. [Fig. 10] is a schematic diagram showing the effect of a passive radiator speaker according to a first embodiment.

100:高音增強型被動幅射器 110:懸邊 111:內環帶 114:外環帶 115:隆起部 130:壓電喇叭 150:配重板 100: Treble enhanced passive radiator 110: hanging edge 111: Inner ring belt 114:Outer ring belt 115: bulge 130: Piezoelectric horn 150: Weight plate

Claims (20)

一種高音增強型被動幅射器，包括：一懸邊；一壓電喇叭，連接於該懸邊；以及一配重板，可相對該壓電喇叭振動地連接該壓電喇叭，該配重板的投影面積與該壓電喇叭的投影面積於一軸方向上至少部分重疊。 A treble-enhanced passive radiator, including: a suspension; a piezoelectric speaker connected to the suspension; and a weight plate that can vibrately connect the piezoelectric speaker relative to the piezoelectric speaker, and the weight plate The projected area of the piezoelectric horn at least partially overlaps with the projected area of the piezoelectric horn in one axis direction. 如請求項1所述之高音增強型被動幅射器，其中，該懸邊包含一內環帶，該壓電喇叭連接該內環帶，該配重板連接於該壓電喇叭相對於該內環帶的另一面。 The high-pitched enhanced passive radiator as claimed in claim 1, wherein the suspension edge includes an inner ring, the piezoelectric speaker is connected to the inner ring, and the weight plate is connected to the piezoelectric speaker relative to the inner ring. The other side of the band. 如請求項1所述之高音增強型被動幅射器，更包括一墊圈，該懸邊包含一內環帶，該壓電喇叭連接該內環帶，該墊圈連接於該壓電喇叭相對於該內環帶的另一面，該配重板連接於該墊圈相對於該壓電喇叭的另一面。 The treble-enhanced passive radiator of claim 1 further includes a washer, the rim includes an inner ring, the piezoelectric speaker is connected to the inner ring, and the washer is connected to the piezoelectric speaker relative to the On the other side of the inner ring, the weight plate is connected to the other side of the washer relative to the piezoelectric horn. 如請求項1所述之高音增強型被動幅射器，其中，該懸邊包含一內環帶，該配重板連接該內環帶，該壓電喇叭連接於該配重板相對於該內環帶的一面。 The high-pitched enhanced passive radiator as claimed in claim 1, wherein the suspension edge includes an inner ring zone, the weight plate is connected to the inner ring zone, and the piezoelectric horn is connected to the weight plate relative to the inner ring zone. The girdle side. 如請求項1所述之高音增強型被動幅射器，其中，該懸邊包含一內環帶，該壓電喇叭連接該內環帶，該配重板連接於該內環帶相對於該壓電喇叭的另一面。 The high-pitched enhanced passive radiator as claimed in claim 1, wherein the suspension includes an inner ring, the piezoelectric speaker is connected to the inner ring, and the weight plate is connected to the inner ring relative to the piezoelectric horn. The other side of the electric speaker. 如請求項4或5所述之高音增強型被動幅射器，其中，該配重板之尺寸大於該壓電喇叭之尺寸。 The high-pitched enhanced passive radiator as described in claim 4 or 5, wherein the size of the weight plate is larger than the size of the piezoelectric horn. 如請求項6所述之高音增強型被動幅射器，其中，該配重板開設有一槽或一穿孔。 The high-pitched enhanced passive radiator as claimed in claim 6, wherein the weight plate is provided with a slot or a perforation. 如請求項1所述之高音增強型被動幅射器，其中，該懸邊具有一外環帶、一內環帶及一隆起部，該隆起部位於該外環帶及該內環帶之間。 The high-pitched enhanced passive radiator according to claim 1, wherein the suspension has an outer ring band, an inner ring band and a bulge, and the bulge is located between the outer ring band and the inner ring band. . 如請求項1所述之高音增強型被動幅射器，其中，該懸邊之形狀係為圓形、橢圓形或矩形狀，且該壓電喇叭及該配重板之形狀對應該懸邊。 The high-pitched enhanced passive radiator as claimed in claim 1, wherein the shape of the overhang is circular, elliptical or rectangular, and the shapes of the piezoelectric horn and the weight plate correspond to the overhang. 一種被動幅射器音箱，包括：一殼體，具有一低音喇叭及一高音增強型被動幅射器，該高音增強型被動幅射器位於相對該低音喇叭的一側，該高音增強型被動幅射器包括：一懸邊；一壓電喇叭，連接於該懸邊；以及一配重板，可相對該壓電喇叭振動地連接該壓電喇叭，該配重板的投影面積與該壓電喇叭的投影面積於一軸方向上至少部分重疊。 A passive radiator speaker includes: a shell with a woofer and a treble-enhanced passive radiator. The treble-enhanced passive radiator is located on the side opposite to the woofer. The treble-enhanced passive radiator The emitter includes: a suspension; a piezoelectric horn connected to the suspension; and a counterweight plate, which can be connected to the piezoelectric speaker in a vibrating manner relative to the piezoelectric speaker. The projected area of the counterweight plate is consistent with the piezoelectric speaker. The projected areas of the speakers at least partially overlap in one axis direction. 如請求項10所述之被動幅射器音箱，其中，該懸邊包含一內環帶，該壓電喇叭連接該內環帶，該配重板連接於該壓電喇叭相對於該內環帶的另一面。 The passive radiator sound box of claim 10, wherein the suspension includes an inner ring, the piezoelectric speaker is connected to the inner ring, and the weight plate is connected to the piezoelectric speaker relative to the inner ring. the other side of. 如請求項10所述之被動幅射器音箱，更包括一墊圈，該懸邊包含一內環帶，該壓電喇叭連接該內環帶，該墊圈連接於該壓電 喇叭相對於該內環帶的另一面，該配重板連接於該墊圈相對於該壓電喇叭的另一面。 The passive radiator sound box as claimed in claim 10 further includes a washer, the rim includes an inner ring, the piezoelectric speaker is connected to the inner ring, and the washer is connected to the piezoelectric The other side of the horn relative to the inner ring is connected to the counterweight plate on the other side of the washer relative to the piezoelectric horn. 如請求項10所述之被動幅射器音箱，該懸邊包含一內環帶，該配重板連接該內環帶，該壓電喇叭連接於該配重板相對於該內環帶的一面。 As for the passive radiator sound box described in claim 10, the suspension edge includes an inner ring band, the weight plate is connected to the inner ring band, and the piezoelectric speaker is connected to a side of the weight plate opposite to the inner ring band. . 如請求項10所述之被動幅射器音箱，其中，該懸邊包含一內環帶，該壓電喇叭連接該內環帶，該配重板連接於該內環帶相對於該壓電喇叭的另一面。 The passive radiator sound box of claim 10, wherein the suspension includes an inner ring, the piezoelectric speaker is connected to the inner ring, and the weight plate is connected to the inner ring relative to the piezoelectric speaker. the other side of. 如請求項13或14所述之被動幅射器音箱，其中，該配重板之尺寸大於該壓電喇叭之尺寸。 The passive radiator sound box according to claim 13 or 14, wherein the size of the weight plate is larger than the size of the piezoelectric speaker. 如請求項15所述之被動幅射器音箱，其中，該配重板開設有一槽或一穿孔。 The passive radiator sound box as claimed in claim 15, wherein the weight plate is provided with a slot or a through hole. 如請求項10所述之被動幅射器音箱，其中，該懸邊具有一外環帶、一內環帶及一隆起部，該隆起部位於該外環帶及該內環帶之間。 The passive radiator sound box according to claim 10, wherein the suspension has an outer ring zone, an inner ring zone and a bulge, and the bulge is located between the outer ring zone and the inner ring zone. 如請求項10所述之被動幅射器音箱，其中，該懸邊之形狀係為圓形、橢圓形或矩形狀，且該壓電喇叭及該配重板之形狀對應該懸邊。 The passive radiator sound box of claim 10, wherein the shape of the overhang is circular, elliptical or rectangular, and the shapes of the piezoelectric horn and the weight plate correspond to the overhang. 如請求項10所述之被動幅射器音箱，其中，該殼體具有一第一槽及一第二槽，該低音喇叭位於該第一槽，該高音增強型被動幅射器位於該第二槽。 The passive radiator sound box according to claim 10, wherein the housing has a first slot and a second slot, the woofer is located in the first slot, and the treble enhanced passive radiator is located in the second slot. groove. 如請求項19所述之被動幅射器音箱，其中，該殼體更包括一蓋板，該蓋板組設於該殼體，該第一槽及該第二槽開設於該蓋板上。 The passive radiator sound box of claim 19, wherein the housing further includes a cover plate, the cover plate is assembled on the housing, and the first groove and the second groove are opened on the cover plate.
TW111108649A 2022-03-09 2022-03-09 High pitch enhanced passive radiator and passive radiator speaker having the same TWI819514B (en)

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TW111108649A TWI819514B (en) 2022-03-09 2022-03-09 High pitch enhanced passive radiator and passive radiator speaker having the same
CN202210381977.7A CN116782080A (en) 2022-03-09 2022-04-12 High-pitch enhanced passive radiator and passive radiator loudspeaker box
US17/852,473 US20230292039A1 (en) 2022-03-09 2022-06-29 High pitch enhanced passive radiator and passive radiator speaker having the same

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101600131A (en) * 2009-07-02 2009-12-09 深圳东原电子有限公司 A kind of passive radiator loudspeaker system
TWM477111U (en) * 2013-12-17 2014-04-21 Kingstate Electronics Corp Piezoelectric ceramic loudspeaker
CN208489986U (en) * 2018-08-13 2019-02-12 汉桑（南京）科技有限公司 Passive radiator
CN210927968U (en) * 2020-01-07 2020-07-03 北京小米移动软件有限公司 Speaker and electronic apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010031061A1 (en) * 2000-01-05 2001-10-18 Coombs Jeffery James Speaker apparatus with dual compartment enclosure and internal passive radiator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101600131A (en) * 2009-07-02 2009-12-09 深圳东原电子有限公司 A kind of passive radiator loudspeaker system
TWM477111U (en) * 2013-12-17 2014-04-21 Kingstate Electronics Corp Piezoelectric ceramic loudspeaker
CN208489986U (en) * 2018-08-13 2019-02-12 汉桑（南京）科技有限公司 Passive radiator
CN210927968U (en) * 2020-01-07 2020-07-03 北京小米移动软件有限公司 Speaker and electronic apparatus

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